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Review reviewHigh

CVE-2023-53486

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Enhance the attribute size check This combines the overflow and boundary check so that all attribute size will be properly examined while enumerating them. [ 169.181521] BUG: KASAN: slab-out-of-bounds in run_unpack+0x2e3/0x570 [ 169.183161] Read of size 1 at addr ffff8880094b6240 by task mount/247 [ 169.184046] [ 169.184925] CPU: 0 PID: 247 Comm: mount Not tainted 6.0.0-rc7+ #3 [ 169.185908] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 [ 169.18...

CVSS
7.1
EPSS
-
- percentile
CISA KEV
Not listed
Published
2025.10.01
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability-
Technical severityCVSS 7.1

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Enhance the attribute size check This combines the overflow and boundary check so that all attribute size will be properly examined while enumerating them. [ 169.181521] BUG: KASAN: slab-out-of-bounds in run_unpack+0x2e3/0x570 [ 169.183161] Read of size 1 at addr ffff8880094b6240 by task mount/247 [ 169.184046] [ 169.184925] CPU: 0 PID: 247 Comm: mount Not tainted 6.0.0-rc7+ #3 [ 169.185908] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 [ 169.18...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 4534a70b7056fd4b9a1c6db5a4ce3c98546b291e < 1fd5b80c9339503f3eaa4db3051b37ac506beeab, >= 4534a70b7056fd4b9a1c6db5a4ce3c98546b291e < 277439e7cabd9d4c6334b39a4b99d49b4c97265b, >= 4534a70b7056fd4b9a1c6db5a4ce3c98546b291e < f28d9e02c2c242e8f9af9e13ba263fcc0211be49, >= 4534a70b7056fd4b9a1c6db5a4ce3c98546b291e < 4f082a7531223a438c757bb20e304f4c941c67a8, >= 5.15, >= 5.15 < 5.15.113, >= 5.16 < 6.1.80, >= 6.2 < 6.3.4
Fixed versions
5.15.113, 6.1.80, 6.3.4

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE
CWE-125